JP3456076B2 - Winding device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device used for producing an air-core coil such as a voice coil for a small speaker. 2. Description of the Related Art Conventionally, as further miniaturization of small loudspeakers and the like has progressed, the diameter of a wire used for a voice coil has become thinner, which has been a cause of lowering the production yield of the voice coil. Hereinafter, this type of conventional winding device will be described with reference to the drawings. FIG. 7 is a front sectional view of a main part showing the configuration of the conventional winding device. FIG. 8 is a front cross sectional view of a main part showing a joining assembly for joining a voice coil obtained by the winding device to a diaphragm. It is. In FIG. 7, reference numeral 54 denotes a winding shaft on which a winding is wound. The winding shaft 54 is fitted with a spring 62 and is slidably fitted into the center of the winding bearing 43. The right end is a winding bearing. 43
Is attached in a state of projecting outside through a center hole of a wire guide 55 that guides a wire 51 connected to the right side of the wire guide 55. The winding bearing 43 is rotatably mounted on a fixed base 44 via bearings 45 and 46 such as bearings. The winding bearing 43 has a chuck 52 for gripping a starting end of a wire rod 51 and a terminal 52 at the same end. Chuck 5 for holding the part
3 is attached. Numeral 61 denotes an actuator attached to one end of the fixed base 44, which drives a driving plate 63 fixed to the left end of the winding shaft 54 to slide the winding shaft 54 left and right in the winding bearing 43. Things. Reference numerals 59 and 60 denote actuators mounted on the distal end of the fixed base 44 for moving the chuck 52 and the chuck 53 to the left and right, and 64 regulates the application of a predetermined tension to the wire 51 and the winding position or winding. It is a guide roller. Reference numeral 56 denotes a line guide fixed to the left end of the guide shaft 65, which is installed at a position facing the line guide 55, and into which the right end of the winding shaft 54 protrudes is slidably inserted into the center. It has an insertion hole 50 for regulating the winding width of the winding of the wire 51 on the winding shaft 54 together with the wire guide 55. The guide shaft 65 is rotatably mounted on an actuator 48 which slides on the fixed slider 42 right and left via a bearing 49 such as a bearing. Reference numeral 57 denotes a hot-air mechanism having a hot-air blowing nozzle 47. The hot-air mechanism 57 melts and fixes a part of the insulating film of the wire 51 to be wound to form a voice coil.
Is a lever for knocking down the voice coil in order to take out the completed voice coil. Next, the operation of the conventional winding apparatus having the above-described configuration and the joining and assembling of the voice coil and the diaphragm obtained thereby will be described. First, the wire 51 supplied through the guide roller 64 is passed through the chuck 53 and the wire guide 55,
A winding shaft is wound and set by a wire guide 55 and a wire guide 56 and set and regulated via a winding shaft 54 and a chuck 52 whose winding width is controlled. The voice coil is formed by rotating the winding bearing 43 and the guide shaft 65 and blowing a predetermined number of turns to a predetermined winding width while spraying on the 54. afterwards,
The wire guide 56 is moved rightward to be pulled out from the winding shaft 54, and the winding shaft 54 is moved leftward so that the right end of the wire guide 5 projects.
After the chuck 52 and the chuck 53 are opened, the lever 58 is moved downward to knock out the completed voice coil and take it out. Then, in order to assemble and assemble the voice coil 66 thus wound and completed to the diaphragm 68, as shown in FIG.
A vibration plate 68 coated with a rubber is attached, and a pin 7 for slackening is attached.
1 are respectively hooked onto the start and end portions 67 of the wire 1, and a bonding jig 70 having the voice coil 66 wound and taken out by the above is inserted from above the jig 69 so that the voice coil 66 is placed on the diaphragm 68. Then, the joining jig 70 is gently pulled up so that the voice coil 66 and the vibrating plate 68 can be joined and assembled in a state where the start and end portions 67 of the wire 51 are slackened. However, in the above-described conventional configuration, when the diameter of the wire 51 used for the voice coil 66 is reduced, the tension of the wire 51 is reduced and the tension in the winding is increased. The wire 51 at the beginning of the winding must be wound around the wire guide 55 or the wire guide 56 at both ends of the winding shaft 54, but the wire 51 wound first around the winding shaft 54 heated by hot air is required. Is difficult to determine, and if it is wrapped around a distant position without contact, the production yield of the voice coil 66 is reduced. Further, in the step of joining the voice coil 66 and the diaphragm 68, the complexity and the required accuracy of processing the start and end portions 67 of the wire 51 of the voice coil 66 necessitate manual work. It is necessary to manually perform slackening for preventing the start / end portion 67 of the coil 66 from being disconnected, and there is a problem that automation of the manufacturing process is difficult. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described conventional problems, and has as its object to provide a winding device capable of improving the production yield of voice coils and further automating the manufacturing process. Things. In order to solve the above-mentioned problems, a winding device according to the present invention is provided via a guide roller.
A winding shaft for winding the supplied wire, and a winding bearing
And a mechanism for gripping the beginning and end of the integrally mounted wire,
A first wire guide having a groove for guiding the wire,
Is provided facing the wire guide of
The second wire that regulates the width and rotates in conjunction with the winding shaft
And the winding shaft includes the first and second wire guides.
It can move freely linearly in the axial direction of the winding shaft with respect to the id.
In addition, a mechanism for taking out the coil provided opposite to the first wire guide from the winding shaft, a mechanism for gripping the beginning and end of the wire of the coil while applying tension to the wire, and for preventing the wire from breaking. The coil assembly is configured to include a mechanism for joining and assembling the wire to the workpiece while slackening the end of the wire. With this configuration, the winding shaft can be freely moved in the direction of rotation and in a straight line perpendicular to the plane of rotation. Regardless of the position of the wire to be wound first, it is set to move to a predetermined winding start position. In addition, the voice coil can be automatically removed, and the start and end of the wire can be automatically slackened, preventing the production yield of the voice coil from lowering and automating the manufacturing process. Can be performed, and the productivity can be improved. According to the first aspect of the present invention, a wire supplied via a guide roller is wound.
A winding shaft, and a mechanism for gripping the end start end integrally mounted wire rod through the wound bearing the winding axis, and a first line guide having a groove for guiding the wire, the first wire guide and the opposite A second wire guide that slides on the outer periphery of the winding shaft, regulates the winding width, and rotates in conjunction with the winding shaft.
Is relative to the first and second wire guides,
A configuration characterized by being freely linearly movable in the axial direction; and
Are those were always one end of the coil winding start position of the winding
Has the effect that it can be restricted to a predetermined location. According to a second aspect of the present invention, in the first aspect of the present invention, the first wire guide is movable in the horizontal direction, and a tension is applied to the start and end portions of the wound and fixed wire. A mechanism in which the first wire guide is arranged side by side with the second wire guide so as to face when the first wire guide moves in the horizontal direction, and a mechanism for gripping while taking out and a mechanism for taking out the wire wound and fixed from the winding shaft are provided. It has an effect of giving an appropriate tension to the wire or continuously taking out the completed coil. According to a third aspect of the present invention, in the invention according to the second aspect, a mechanism for joining to a workpiece while slackening the start and end portions of the wire material wound and fixed is a first wire. This is a configuration in which the guide is provided side by side with the second line guide so as to face when the guide moves horizontally, and has an operation of automating the manufacturing process. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front sectional view of a main part showing a configuration of a winding device according to the embodiment, and FIGS. 2A and 2B are side sectional views and a front view of a main part showing a take-out mechanism of the winding device. 3 (a) and 3 (b) are front views of main parts showing a slack mechanism of a wire rod of the winding device, FIGS. 4 and 5 are partial cross-sectional views of main parts showing a winding process of the winding device, and FIGS. FIG. 3 is a front sectional view of a main part showing main steps of a slack setting mechanism and a joining assembly of the winding device. In FIG. 1, reference numeral 4 denotes a winding shaft which is a main part of a winding block. The winding shaft 4 is fitted into a center portion of a winding bearing 6 with a spring 7 attached thereto. A spring washer 8 and a spring 9 are mounted on the wire bearing 6 and attached to the right side of the winding bearing 6 so as to protrude outside from a center hole of a wire guide 5 having a groove for guiding the wire 1. The rolling bearing 6 is fixed to a fixed base 22a of the bearing frame 22 via bearings 39 and 40 such as bearings.
The winding bearing 6 is provided with a chuck 2 for gripping the starting end of the wire 1 and a chuck 3 for gripping the same end. Reference numeral 10 denotes a driving actuator attached to one end of the fixed base 22a, which drives the driving plate 33 attached to the left end of the reel 4 to move the reel 4 leftward. Numeral 11 denotes an actuator, which drives the left end face of the reel 4 to move the reel 4 rightward. Numerals 26 and 27 are actuators mounted on the upper end of the fixed base 22a for opening and closing the chuck 2 and the chuck 3 or for moving the chuck 3 left and right. Reference numeral 41 regulates the application of a predetermined tension to the wire 1 and the winding position or winding method. And a winding block formed by the above components. Reference numeral 12 denotes a wire guide fixed to the left end of the guide shaft 37. The wire guide 12 is installed at a position facing the wire guide 5 which is a component of the winding block. Has an insertion hole 35 slidably inserted therein, and regulates the winding width of the winding on the winding shaft 4 together with the wire guide 5. The guide shaft 37 is rotatably mounted on an actuator 28 via a bearing 36 such as a bearing.
Is configured to slide left and right by a slider 29a provided at the upper end of the. Numeral 34 denotes a hot air mechanism having a hot air blowing nozzle 38 attached to the main body frame 29, which forms a voice coil by melting and fixing a part of the insulating film of the wire 1 to be wound. . Reference numeral 30 denotes a pulley for rotating the winding bearing 6 or the winding shaft 4 via a driving belt 31 by a driving device (not shown). Reference numeral 23 denotes a pulley for moving the bearing frame 22 in the front-rear direction (back and front). Actuator. In FIG. 2, reference numeral 16 denotes a guide shaft 37 adjacent to the axis of the winding shaft 4 of the winding block when the winding block slides in the horizontal direction (the front-back direction in FIG. 1). And a take-out block installed on the main body frame 29 for taking out the voice coil completed with the attached components, joining and assembling, and slackening the start and end portions of the wire 1. Reference numeral 15 denotes a fulcrum shaft attached to the upper end of the take-out block 16. The fulcrum shaft 15 is opened and closed by one end of the fulcrum shaft 15 by an actuator 18, and is opened and closed by an actuator (not shown). A lever 13a and a lever 13b each having a chuck 14b for gripping the same end portion are swingably attached. Then, the lever 13a and the lever 13b are turned by the torsion coil spring 32.
Each of them is given a force to swing outward, and is driven by an actuator 17 to swing inward. Reference numeral 19 denotes a wire hooking portion having the same outer diameter as that of the winding shaft 4 provided on the front surface of the take-out block 16 facing the winding block, and the center hole of the wire guide 5 on which the winding shaft 4 slides. To the right end of the 20a and 20b are wire chucks,
Actuator 21, cam 21a and return spring 21b
And the forming pins 20c, 2
0d and forming pins 20e and 20f.
Reference numeral 24 denotes an actuator for moving the take-out block 16 to the left and right (approaching to and detaching from the winding shaft 4), and reference numeral 25 denotes an actuator for rotating the entire take-out block 16 by 90 degrees (arrow direction B). In FIG. 1, the bearing frame 22 holding the winding block composed of the winding shaft 4 and the wire guide 5 is moved over the main body frame 29 by the actuator 23 so that the bearing block 22 is connected to the winding block at the time of winding. The voice coil on the same axis of the winding shaft 4 is taken out, the starting and ending portions of the wire are slackened, and the space between the take-out blocks 16 for joining and assembling is moved in parallel to the front and rear (a drive mechanism is not shown). It has a configuration. Next, the winding operation will be described.
As shown in FIGS. 4 and 5, the fixed base 22 a, that is, the winding shaft 4 of the winding block is set to the winding position by the actuator 23, the wire guide 12 is moved leftward by the actuator 28, and Insert the right end into hole 3
5 (FIG. 4A). Next, the starting and ending portions of the wire 1 made of a copper wire having a polyurethane or polyester insulating film and the like supplied around the winding shaft 4 via the guide roller 41 are moved to the chuck 2 by driving the actuator 26. (The supply of the wire 1 and the tension mechanism are not shown). Then, the actuator 11 is driven to compress the spring 9 and expand the spring 7 to move the winding shaft 4 in the axial direction of the winding shaft 4.
After further linearly moved in the right direction is (FIG. 4
(B)), the drive belt 31 is driven by a drive mechanism (not shown).
And the winding shaft 6 i.e. the reel 4 via the pulley 30 is rotated one revolution before and after, Ru wound wire 1 in the winding shaft 4 (FIG. 4
(C)). At this time, the wire 1 is made up of the wire guide 5 and the wire guide 1.
2, and the drive of the actuator 11 is stopped, and the winding shaft 4 is rotated by the springs 7 and 9.
Is linearly moved to the left, which is the axial direction of the winding shaft 4, and returned to the original position, so that the wire 1 is brought to the position of one end where it comes into contact with the predetermined wire guide 5 regardless of the winding position (FIG. 4 (b)). Thereafter, winding is performed by rotating the winding shaft 4 a predetermined number of times in the same manner as described above, and at the same time, the hot air generated by the hot air mechanism 34 is sent from the nozzle 38 to the winding shaft 4 and wound. A part of the insulating film of the wire 1 is melted and fixed. Further, the chuck 3 is opened by the actuator, the winding shaft 4 is rotated, and the wire 1 is gripped by the chuck 3. Then, the terminal end of the wire 1 before the chuck 3 is cut, and the wire guide 1 is moved by the actuator 28.
2 is moved to the right, the winding operation is completed by removing the winding from the right end of the winding shaft 4, and a voice coil 1a having a winding start position at a predetermined end is formed. Next, as shown in FIGS. 1, 2, 3, and 5, the wound voice coil 1a is taken out.
The bearing frame 22 of the winding block including the winding bearing 6, the winding shaft 4, the wire guide 5, and the like is moved to a position facing the take-out block 16 by the actuator 23 (FIG. 5A).
(E)) Then, the take-out block 16 is moved to the left by the actuator 24, and the right end of the winding shaft 4 is brought into contact with the left end of the wire hooking portion 19.
5 is pushed in the left direction of the wire guide 5 (FIGS. 5B and 5F), and at the same time, the driving plate 33 is driven by the actuator 10 so that the winding shaft 4 is pulled in the left direction (FIG. 5).
(C)). At this time, the diameter of the left end of the winding shaft 4 and that of the wire hooking portion 19 are the same, and since they are on the same axis, the voice coil 1a wound around the winding shaft 4 comes off from the winding shaft 4. Thus, the wire hooking portion 19 is hooked and held at the left end. Further, the start and end portions of the wire 1 held by the chucks 2 and 3 are
And the actuator 17 is operated to operate the chuck 14a.
Then, the chuck 2 and the chuck 3 are opened by the actuator 26 and the actuator 27, and the start and end portions of the wire 1 are opened from the chuck 2 and the chuck 3.
Then, the take-out block 16 is moved rightward (FIGS. 5 (d) and 5 (g)), and the take-out block 16 is rotated by about 90 degrees in the direction of arrow B by the actuator 25. At this time, the actuator 21 is actuated and the wire chuck 20 is rotated by 90 degrees of the cam 21a.
a and the wire chuck 20b (FIG. 3)
(A)) The forming pins 20c and 20d and the forming pins 20e and 20f hold the starting and ending portions of the wire 1 in a U-shape and an inverted-C shape by applying tension to the torsion coil spring 32 and sagging (FIG. 3
(B)). Next, in the joining assembly to the diaphragm 1b, following the above-described process, the take-out block 16, that is, the wire hooking portion 19
The actuator is mounted on an assembling jig 1d in which a vibration plate 1b to be a workpiece to which a UV-curable adhesive 1c is applied, for example, is attached at a predetermined position (FIG. 6A) on the same axis facing the actuator. 24, the leading end of the wire hooking portion 19, which hooks and holds the voice coil 1a, is brought close to and brought into contact with the wire coil 1a (FIG. 6B), and is irradiated with ultraviolet rays (irradiation mechanism is not shown). Improve the force and bond the actuator 18
The chuck 14a and the chuck 14b are opened, and the take-out block 16, that is, the wire hooking portion 19 is pulled up by the actuator 24 in a direction away from the upward assembly jig 1d. The coil 1a is released from the leading end of the wire hanging portion 19 while the end-to-end end 1e is slackened, and is joined to the diaphragm 1b (FIG. 6 (c)). In the above embodiment, the example of the winding of the voice coil 1a by the wire 1 and the winding device for joining and assembling the voice coil 1a and the diaphragm 1b has been described. However, the present invention is not limited to this. Instead, the present invention can be used for windings of the same kind of wire or windings other than voice coils. As described above, the winding device according to the present invention has the following features.
In particular, in the winding of a thin wire, the winding shaft can be freely rotated and linearly moved in a direction perpendicular to the rotation surface, thereby restricting the winding start position of the wire and bringing the wire into close contact with the wire guide at the regular winding start position. It is also possible to automatically take out the completed voice coil at the end of winding and to join and assemble it to the diaphragm. Further, since the wire can be slackened automatically at the time of joining, the production yield of the voice coil can be improved and the manufacturing process can be automated, and an excellent winding device can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view of a main part showing a configuration of a winding device according to an embodiment of the present invention. FIG. 2 (a) A side surface of a main part showing a take-out mechanism of the winding device. Sectional view (b) Front view of main part [FIG. 3] (a), (b) Front view of main part showing slackening mechanism of wire material of the winding device [FIG. 4] A winding process of the winding device FIG. 5 is a partial cross-sectional view of a main part showing a voice coil take-out process of the winding device. FIG. 6 is a front cross-sectional view of a main part showing a main process of a slackening mechanism and a joining assembly of the winding device. FIG. 7 is a front cross-sectional view of a main part showing the configuration of a conventional winding device. FIG. 8 is a front cross-sectional view of a main part showing a joint assembly of the voice coil and the diaphragm. 1b Vibration plate 1c Adhesive 1d Assembly jig 1e Start and end 2 Chuck 3 Chuck 4 Roll shaft 5 Wire guide 6 Roll bearing 7 Spring 8 Spring washer 9 Spring 10 Actuator 11 Actuator 12 Line guide 13a Lever 13b Lever 14a Chuck 14b Chuck 15 Support point shaft 16 Extraction block 17 Actuator 18 Actuator 19 Wire hooking part 20a Wire hooking chuck 20b Wire hooking chuck 20c Forming pin 20d Forming pin 20e Forming pin 20f Forming pin 21 Actuator 21a Cam 21b Return spring 22 Bearing frame 22a Fixed base 23 Actuator 24 Actuator 25 Actuator 26 Actuator 27 Actuator 28 Actuator 29 Body frame 29a Slider 30 Pulley 31 Drive belt 32 Torsion coil spring 33 Drive plate 34 Hot air mechanism 35 insertion hole 36 bearing 37 guide shaft 38 Nozzle 39 Bearing 40 Bearing 41 Guide roller

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-109571 (JP, A) JP-A-6-96977 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01F 41/06

Claims (1)

(57) [Claim 1] A winding shaft for winding a wire supplied via a guide roller, and a start and end portion of a wire integrally mounted on the winding shaft via a winding bearing. And a first wire guide having a groove for guiding the wire, and a first wire guide is provided to face the first wire guide, and slides around the outer circumference of the winding shaft to regulate the winding width and to adjust the winding width. Yes a second line guide that rotates in conjunction with each other
And the winding shaft is opposed to the first and second wire guides.
And that it can be freely and linearly moved in the axial direction of the winding shaft.
The winding apparatus according to symptoms.